All of this can be farmed easily in Tenebrous Tangle. Fish and Roots at Tenebrous Landing. Wood on Fear Tainted isle and all the bushes you could possibly want on Bixie Isle. Trap dens up by the Gorgs on Tenebrous Landing, then when they're gone head over to Vultak Scavenging Site - as usual, meat from dens will take a while and you'll have to go back and forth a couple times.